Communism on a Family Level

Communism is when the entire wealth is evenly distributed.
In theory, communism should work, but only on a family level.
For example a boy (we will call Mike) lives with his parents as a family that we will call the Smith family, his parents give him what he needs. In return Mike helps around the house (washes the dishes, clean the car, take the rubbish out, walks the dog, etc), this is what he puts back into the family.
Now here is where it gets complicated, we introduce another family that we will call the Robinson family. …